Here is the INSTRUCTABLE to make awesome quality mobile speaker on the go !
This is so small to carry + usefull in outside the country.
3W output. Ya it's really loud enough !!
Step 1: Parts Needed:
1. 2" speaker
2. round wooden container (For better bass levels)
3. Audio amplifier circuit (I am providing two options)
4. LED indicator (Just power on notifier)
5. Auxiliary cable
6. any small battery (3V to 6V)
THATS IT !!
Step 2: Audio Amplifier 1
here i have been used amp ic from my old speakers --CKE2009
the datasheet is attached. But one can refer only circuit diagram.
OR refer next step.
Step 3: Audio Amplifier 2
This amplifier made with most commonly available IC TDA2822
is 2.5W amplifier.